Imruza 50 mg Tablet is an immunosuppressive medication containing Azathioprine, primarily used to prevent organ rejection in transplant patients and to manage various autoimmune conditions. Azathioprine works by inhibiting the proliferation of immune cells, thereby suppressing the immune response that can lead to organ rejection or autoimmune disease activity. It is commonly prescribed in combination with corticosteroids or other immunosuppressants to enhance therapeutic efficacy.